Home / 880,910.51-1,215,636.12-513,364.23

Finding the Fourth Proportional to 880,910.51, 1,215,636.12 and 513,364.23

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Solution

The fourth proportional to 880,910.51, 1,215,636.12 and 513,364.23 is: 708,430.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,910.51 : 1,215,636.12 = 513,364.23 : x
  2. Step 2: Convert to fraction form
    880,910.51/1,215,636.12 = 513,364.23/x
  3. Step 3: Cross multiply
    880,910.51x = 1,215,636.12 × 513,364.23
  4. Step 4: Simplify right side
    880,910.51x = 624,064,100,703.99
  5. Step 5: Solve for x
    x = 624,064,100,703.99/880,910.51
  6. Step 6: Final answer
    x = 708,430.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.